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*Your clearance needs to be designed for the maximum. *
Agreed.
On Tue, Feb 5, 2019 at 12:00 AM TechNet automatic digest system <
[log in to unmask]> wrote:
> There is 1 message totaling 28 lines in this issue.
>
> Topics of the day:
>
> 1. IPC2221 Electrical Conductor Spacing Requirements
>
> ----------------------------------------------------------------------
>
> Date: Mon, 4 Feb 2019 09:40:45 -0600
> From: Jack Olson <[log in to unmask]>
> Subject: Re: IPC2221 Electrical Conductor Spacing Requirements
>
> On Mon, 28 Jan 2019 10:54:30 -0600, Steven Schell <
> [log in to unmask]> wrote:
>
> >I am trying to interpret the electrical clearance requirements in the
> IPC2221A standard, under section 6.3.
> >Table 6-1 lists minimum spacing requirements for various voltage ranges
> between conductors.
> >The table indicates that this is for AC or DC peaks.
> >I am trying to interpret that last part.
> >Our application has a tracking power supply that provides a variable DC
> output voltage. The average DC voltage is between 16 and 30V, but the peak
> instantaneous DC voltage exceeds 31V.
> >In this case, should I be complying with the minimum spacing requirements
> for 16-30V, or should I be complying with the minimum spacing requirements
> for 31-50V.
>
> Your clearance needs to be designed for the maximum.
> I think you need to use the 31-50V value.
>
> ------------------------------
>
> End of TechNet Digest - 29 Jan 2019 to 4 Feb 2019 (#2019-14)
> ************************************************************
>
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